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PedroCastro1111
@PedroCastro1111
October 2019
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Preciso do resultado das equações e dela feita (por favor):
a) 10x-50=8x-20
b) 6x-12=8x-40
c) 3x-100=2x-300
d) 5x-15=20+10x
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Angiolee
A= -0,6
B= 14
C= 200
D= -3
0 votes
Thanks 0
PedroCastro1111
Preciso delas prontas
MortDiAlgebra
a) 10x -50 = 8x- 20
10x - 8x = +50 -20
2x = 30
x = 30/2
x = 15
b) 6x -8x = +12 -40
2x = 28
x = 28/2
x = 24
c) 3x -100 = 2x -300
3x - 2x = +100 -300
x = 200
d) 5x -15 = 20 + 10x
5x - 10x = +15 +20
5x = 35
x = 7
1 votes
Thanks 1
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Lista de comentários
B= 14
C= 200
D= -3
10x - 8x = +50 -20
2x = 30
x = 30/2
x = 15
b) 6x -8x = +12 -40
2x = 28
x = 28/2
x = 24
c) 3x -100 = 2x -300
3x - 2x = +100 -300
x = 200
d) 5x -15 = 20 + 10x
5x - 10x = +15 +20
5x = 35
x = 7